A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts

Yek Tann Chua, Peter C Stair, Israel E. Wachs

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts was presented. Spectra from the oxides, both hydrated as a result of contact with ambient air and dehydrated as a result of calcination of laser-induced heating, were recorded. Strong absorption by the samples in the ultraviolet reduced the number of scatterers contributing to the Raman spectrum while producing only modest increases in the Raman scattering cross section due to resonance enhancement. The result was much lower signal levels with ultraviolet excitation compared to visible wavelength excited spectra.

Original languageEnglish
Pages (from-to)8600-8606
Number of pages7
JournalJournal of Physical Chemistry B
Volume105
Issue number36
DOIs
Publication statusPublished - Sep 13 2001

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visible spectrum
Oxides
metal oxides
Raman scattering
Metals
Raman spectra
catalysts
Catalysts
scattering cross sections
Calcination
roasting
Contacts (fluid mechanics)
Heating
Wavelength
heating
oxides
Lasers
augmentation
air
Air

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

A comparison of ultraviolet and visible Raman spectra of supported metal oxide catalysts. / Chua, Yek Tann; Stair, Peter C; Wachs, Israel E.

In: Journal of Physical Chemistry B, Vol. 105, No. 36, 13.09.2001, p. 8600-8606.

Research output: Contribution to journalArticle

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